The influence of fusional divergence on the surgical results in intermittent exotropia.

Ahn, Jae Hong; Lee, Jong Bok; Kim, Nam Soo; Kim, Heeseon

Original Article

Journal of the Korean Ophthalmological Society 1996;37(10):1741-1746.
Published online October 1, 1996.

The influence of fusional divergence on the surgical results in intermittent exotropia.

Jae Hong Ahn, Jong Bok Lee, Nam Soo Kim, Heeseon Kim

Department of Ophthalmology, Yonsei University, College of Medicine, Institute of Vision Research, Seoul, Korea.

개산융합력이 간헐외사시 수술후 안위에 미치는 영향

안재홍(Jae Hong Ahn),이종복(Jong Bok Lee),김남수(Nam Soo Kim),김희선(Hee Seon Kim)

Abstract

We investigated the influence of fusional divergence on the surgical results in the intermittent exotropia. Among the 56 patients with intermittent exotropia. the angle of deviation was measured during the preoperative period and the postoperative periods. The amplitude of the fusional divergence was measured with the rotary prism after the correction of the angle of deviation with the prism before the surgery. The subjects were devided into 4 groups; group one which returned to orthophoria after the overcorrection of exodeviation; group two - which did not return to orthophoria after the overcorrection of exodeviation; group three - which remained orthophoria after the correction of exodeviation; group four - which showed orthophoria initially but returned to undercorrection. There was not any significant difference between the four groups. We concluded that the influence of fusional divergence on the surgical results for intermittent exotropia was not significant enough. However, further studies should be done with more subjects for better results.

Key Words: Fusional divergence;Intermittent exotropia;Overcorrection;Undercorrection